JohnHay, 1st Earl of Tweeddale was born in 1595. He was the son of JamesHay, 7th Lord Hay of Yester and LadyMargaretKerr.1 He married by contract, firstly, JeanSeton, daughter of AlexanderSeton, 1st Earl of Dunfermline, on 5 April 1624.2 He married by contract, secondly, LadyMargaretMontgomerie, daughter of AlexanderMontgomerie, 6th Earl of Eglinton and LadyAnneLivingstone, on 25 December 1641.1 He died on 25 May 1653.2 He held the office of Sheriff of Peebles-shire in February 1608/9.1 He succeeded as the 8th Lord Hay of Yester [S., 1488] on 3 February 1608/9.1 He held the office of Burgess of Edinburgh in 1616.1 He held the office of Auditor of the Exchequer in February 1633/34.1 He held the office of Burgess of Glasgow in 1638.1 He was appointed Privy Counsellor (P.C.) [Scotland] in 1641.1 He held the office of Commissioner of Estates between 1643 and 1651.1 He gained the rank of Colonel of Foot in the County of Edinburgh, Haddingtonshire and Peebles-shire.1 He was created 1st Earl of Tweeddale [Scotland] on 1 December 1646, with special remainder to heirs male forever.1

[S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 60. Hereinafter cited as The Complete Peerage, Volume XIV.

[S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]